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参数资料
| 型号： | M34514M6-XXXFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 4-BIT, MROM, 4.2 MHz, MICROCONTROLLER, PDSO42 |
| 封装： | 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42 |
| 文件页数： | 28/96页 |
| 文件大小： | 1078K |
| 代理商： | M34514M6-XXXFP |
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34
4513/4514 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
SERIAL I/O
The 4513/4514 Group has a built-in clock synchronous serial I/O
which can serially transmit or receive 8-bit data.
Serial I/O consists of;
serial I/O register SI
serial I/O mode register J1
serial I/O transmission/reception completion flag (SIOF)
serial I/O counter
Registers A and B are used to perform data transfer with internal
CPU, and the serial I/O pins are used for external data transfer.
The pin functions of the serial I/O pins can be set with the register
J1.
Table 11 Serial I/O pins
Pin
P20/SCK
P21/SOUT
P22/SIN
Pin function when selecting serial I/O
Clock I/O (SCK)
Serial data output (SOUT)
Serial data input (SIN)
Note: Input ports P20–P22 can be used regardless of register J1.
Fig. 22 Serial I/O structure
Table 12 Serial I/O mode register
J13
J12
J11
J10
Serial I/O mode register J1
This bit has no function, but read/write is enabled.
Instruction clock signal divided by 8
Instruction clock signal divided by 4
Input ports P20, P21, P22 selected
Serial I/O ports SCK, SOUT, SIN/input ports P20, P21, P22 selected
External clock
Internal clock (instruction clock divided by 4 or 8)
Not used
Serial I/O internal clock dividing ratio
selection bit
Serial I/O port selection bit
Serial I/O synchronous clock selection bit
at reset : 00002
at RAM back-up : state retained
Note: “R” represents read enabled, and “W” represents write enabled.
0
1
0
1
0
1
0
1
R/W
J12
SIOF
J12
J11
J10
J11
J10
MSB
1/4
1/8
1
0
P21/SOUT
P22/SIN
P20/SCK
TSIAB
TABSI
SOUT
SIN
SCK
J13
MR3
1
0
XIN
Division circuit
(divided by 2)
Internal clock
generation circuit
(divided by 3)
Instruction clock
Serial I/O mode register J1
Serial I/O interrupt
Serial I/O counter (3)
Synchronous
circuit
Register B (4)
Register A (4)
Serial I/O register SI (8)
LSB
Note: The output structure of SCK and SOUT pins is N-channel open-drain.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M34514M8 | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34514M8-756FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34514M8-759FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34514M8-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34518E8FP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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